Answer:
Explained
Explanation:
The nucleus is unstable if the electron Proton ratio is greater than 1:1.5 and less than 1:1.
At close distances, a strong nuclear force exits between neutrons and protons. More protons in the nucleus requires more neutrons to bind the nucleus together.
In bigger nucleus the force of attraction is much larger than the force of repulsion between protons.
After a certain size, the strong is not able to hold the nucleus together and adding extra neutrons creates space between the protons. thus, decreasing the repulsion, but again if there are too many neutrons nucleus is out of balance and decays.
